No. Blue usually indicates water, and an isthmus is a narrow strip of land joining two larger areas of land.
on a map.
Argolis
Panama. Check a map if you don't believe me. :)
Blue on a map usually represents water. If it is a road map, blue is often the smaller roads.
an area of land almost completely surrounded by water except for an isthmus connecting it with the mainland.
A blue line on a map is a lake ,river , or body of water
Water represents a blue line on a map.
The blue line on a map usually represents a stream of water!
Blue on a map usually denotes water. Blue lines could be streams and rivers.
An Isthmus is a narrow strip of land that connects two larger bodies of land with water on both sides. The Isthmus of Panama, Isthmus of Corinth, Isthmus of Perekop, Isthmus of Gibraltar, Isthmus of Suez are all examples
That's an isthmus. Loot at a map of Panama.
The Isthmus of Panama connects South America with countries north of Panama. The Isthmus of Panama is located in Panama, which is part of Central America.